Influence of different adhesion strategies on glass fiber post retention

Ana-Michelle-Oliveira Nadler; Evair-Josino da Silva; Paulo-Cardoso Lins-Filho; Marlon-Ferreira Dias; Renata-Pedrosa Guimarães; Claudio-Heliomar-Vicente da Silva; Sérgio-Dos Santos Silva; Anderson-Stevens-Leonidas Gomes

doi:10.4317/jced.60452

Influence of different adhesion strategies on glass fiber post retention

J Clin Exp Dent. 2023 Aug 1;15(8):e649-e657. doi: 10.4317/jced.60452. eCollection 2023 Aug.

Authors

Ana-Michelle-Oliveira Nadler¹, Evair-Josino da Silva¹, Paulo-Cardoso Lins-Filho¹, Marlon-Ferreira Dias², Renata-Pedrosa Guimarães³, Claudio-Heliomar-Vicente da Silva³, Sérgio-Dos Santos Silva⁴, Anderson-Stevens-Leonidas Gomes^{5

6}

Affiliations

¹ PhD Student of the Dentistry Post-Graduate Program, Universidade Federal de Pernambuco, Recife, Brazil.
² PhD Student of the Post-Graduate Program in Oral Rehabilitation, Universidade Estadual de São Paulo - UNESP, Araraquara, Brazil.
³ Professor of the Dentristry Department, Universidade Federal de Pernambuco, Recife, Brazil.
⁴ Head of the Laboratory technicians of the Department of Physics, Universidade Federal de Pernambuco, Recife, Brazil.
⁵ Professor of the Dentistry Post-Graduate Program, Universidade Federal de Pernambuco, Recife, Brazil.
⁶ Professor of the Department of Physics, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.

Abstract

Background: Failures in glass fiber post (GFP) retention may be associated with low adhesion achieved in root dentin.

Material and methods: 55 single-rooted premolars were endodontically treated and distributed according to different adhesion strategies (n=11): G1: RelyX ARC (3M ESPE; etch-rinse strategy); G2: Relyx Ultimate (3M ESPE; etch-rinse strategy); G3: AllCem (FGM; etch-rinse strategy); G4: Relyx Ultimate (3M ESPE; self-etching strategy); G5: RelyX U200 (3M ESPE; self-adhesive strategy). For Bonding Strength (BS) analysis, the roots were sectioned in slices (1.0mm thickness) corresponding to each root third and submitted to push-out test. The type of failure was assessed by scanning electron microscopy (SEM).

Results: The highest BS averages were found in G2 and G3. However, in the middle and apical root thirds, G3 showed statistically similar results to G4 and G5. In the cervical and middle third, G1 was statistically similar to G4 and G5. The mixed type of failure was the most common in all groups.

Conclusions: Self-etching (G4) and self-adhesive resin (G5) cements, showed similar BS results of immediate bonding in the cementation of GFP compared to conventional resin cements (G1, G2, G3). Key words:Dental Cements, Dentin-Bonding Agents, Post and Core Technique, Dental Bonding.